remove update module

core/modules/update/config/install/update.settings.yml

-check:
-  disabled_extensions: false
-  interval_days: 1
-fetch:
-  url: ''
-  max_attempts: 2
-  timeout: 30
-notification:
-  emails: {  }
-  threshold: all

core/modules/update/config/schema/update.schema.yml

-# Schema for the configuration files of the Update module.
-
-update.settings:
-  type: config_object
-  label: 'Update settings'
-  mapping:
-    check:
-      type: mapping
-      label: 'Check settings'
-      mapping:
-        disabled_extensions:
-          type: boolean
-          label: 'Check for updates of uninstalled modules and themes'
-        interval_days:
-          type: integer
-          label: 'Days since last check'
-    fetch:
-      type: mapping
-      label: 'Fetch settings'
-      mapping:
-        url:
-          type: uri
-          label: 'URL for fetching available update data'
-        max_attempts:
-          type: integer
-          label: 'Maximum attempts'
-        timeout:
-          type: integer
-          label: 'Timeout in seconds'
-    notification:
-      type: mapping
-      label: 'Notification settings'
-      mapping:
-        emails:
-          type: sequence
-          label: 'Email addresses to notify when updates are available'
-          sequence:
-            type: email
-            label: 'Email'
-        threshold:
-          type: string
-          label: 'Email notification threshold'